Here's a list of words that are very useful and not obscure but all of which few native speakers will know (put together by me over many years).
http://www.box.net/shared/xb7nircngf
Last edited by Sean McHugh; 24-Jan-2009 at 06:10. Reason: updated file
Hi. The purpose of the list is to familiarize yourself with words that are in common use but whose meaning is often not widely understood. They are on the edges of regular vocabulary but NOT obscure or of limited use- I recommend them to all native speakers and those wanting to use the language to a high standard.